Publications
Publications
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- All HBS Web
(1,712)
- Faculty Publications (520)
- January 2024
- Article
Fencing Off Silicon Valley: Cross-Border Venture Capital and Technology Spillovers
By: Ufuk Akcigit, Sina T. Ates, Josh Lerner, Richard Townsend and Yulia Zhestkova
The treatment of foreign investors is a contentious topic in U.S. entrepreneurship policy. We
model a setting where foreign corporate investments in Silicon Valley may allow U.S. entrepreneurs to pursue technologies that they could not otherwise, but may also lead to... View Details
- December 2023
- Article
Intermediary Balance Sheets and the Treasury Yield Curve
By: Wenxin Du, Benjamin Hebert and Wenhao Li
We document a regime change in the Treasury market post-Global Financial Crisis (GFC): dealers switched from net short to net long Treasury bonds. We construct “net-long” and “net-short” curves that account for balance sheet and financing costs, and show that actual... View Details
- November–December 2023
- Article
Tax-Loss Harvesting with Cryptocurrencies
By: Lin William Cong, Wayne Landsman, Edward Maydew and Daniel Rabetti
We describe the taxation landscape in the cryptocurrency markets, especially concerning U.S. taxpayers, and examine how recent increases in tax scrutiny have led to changes in crypto investors' trading behavior. We argue conceptually and then empirically document that... View Details
- November 2023
- Article
A Quantity-Driven Theory of Term Premia and Exchange Rates
We develop a model in which specialized bond investors must absorb shocks to the supply and demand for long-term bonds in two currencies. Since long-term bonds and foreign exchange are both exposed to unexpected movements in short-term interest rates, a shift in the... View Details
- October 2023 (Revised March 2024)
- Case
KOKO Networks: Bridging Energy Transition and Affordability with Carbon Financing
By: George Serafeim, Siko Sikochi and Namrata Arora
The problem was massive: two million hectares of African forests were lost annually to charcoal production for cooking, an area equivalent to 13 times Greater London, resulting in one billion tons of carbon emissions yearly. At the same time, an estimated 700,000... View Details
Keywords: Clean Tech; Digital; Carbon Credits; Carbon Offsetting; Climate Change; Entrepreneurship; Energy Sources; Environmental Sustainability; Health; Market Design; Business Startups; Transition; Environmental Regulation; Policy; Energy Industry; Consumer Products Industry; Africa; Kenya; Rwanda
- October 2023
- Case
Lasell University in 2023: Securing the Future
By: John Jong-Hyun Kim and Mary C. Sauer
In a groundbreaking move on September 20, 2022, Lasell University's President, Michael B. Alexander, announced an extraordinary 33% reduction in tuition, room, board, and fees, signaling a pivotal shift in higher education. Situated in an affluent Boston suburb,... View Details
- August 2023
- Case
Ripple 2023
By: David B. Yoffie, Andy Wu and Sarah von Bargen
This case covers Ripple’s events from 2020–2023. The focus of this case is Ripple’s 2023 victory over the SEC, which sued Ripple in 2020 claiming that they did not register their XRP coins as securities. After Ripple’s victory, CEO Garlinghouse faced numerous... View Details
- 2025
- Working Paper
When Where Watt: Harnessing the Value of Time and Location for Renewable Electricity Generation
By: Vishrut Rana, Christian Kaps and Serguei Netessine
Problem definition: Investments in renewable energy have surged worldwide in recent years, with over $2 trillion spent globally on clean energy. This surge was driven by growing policy support, concerns about energy security, and, most importantly, the cost... View Details
- Summer 2023
- Article
Do Policies to Increase Access to Treatment for Opioid Use Disorder Work?
By: Eric Barrette, Leemore S. Dafny and Karen Shen
Even among commercially insured individuals, opioid use disorder is undertreated in the United States: nearly half receive no treatment within six months of a new diagnosis. Using a difference-in-differences specification exploiting the extension of insurance parity... View Details
- June 2023 (Revised January 2024)
- Case
Siemens AG: A Private Equity Approach within an Industrial Corporation?
By: David J. Collis and Haisley Wert
In July 2022, Horst Kayser, Chairman of Siemens AG Portfolio Companies (POC), was reflecting on the advice he could offer Roland Busch, Chief Executive Officer of the parent company Siemens AG, about whether and how to operate a private equity-like approach inside the... View Details
- 2025
- Working Paper
Turning Points in Inflation: A Structural Breaks Approach with Micro Data
By: Alberto Cavallo and Gaston Garcia Zavaleta
We introduce a novel methodology for detecting inflation turning points that combines high-frequency, disaggregated price data with standard structural break techniques to provide policymakers with more precise and timely signals of inflation dynamics. The methodology... View Details
- April 5, 2023
- Article
We Need an Operation Warp Speed for Long COVID
By: Esther K. Choo and Scott Duke Kominers
With millions of people affected and at least $1 trillion of economic value at stake, long COVID is our next national health emergency. View Details
- March 2023
- Supplement
Allianz Türkiye (C): Managing the 2017 Hail Storm
By: John D. Macomber and Fares Khrais
Allianz Turkey is a property casualty insurance company operating in a region experiencing increasing losses from natural catastrophe events related to climate change, for example hail, wildfire, and flooding. There are also substantial other natural catastrophe... View Details
- March 2023 (Revised April 2024)
- Case
Allianz Türkiye: Adapting to Climate Change
By: John D. Macomber and Fares Khrais
Allianz Turkey is a property casualty insurance company operating in a region experiencing increasing losses from natural catastrophe events related to climate change, for example hail, wildfire, and flooding. There are also substantial other natural catastrophe... View Details
- March 2023
- Article
Not from Concentrate: Collusion in Collaborative Industries
By: Jordan M. Barry, John William Hatfield, Scott Duke Kominers and Richard Lowery
The chief principle of antitrust law and theory is that reducing market concentration—having more, smaller firms instead of fewer, bigger ones—reduces anticompetitive behavior. We demonstrate that this principle is fundamentally incomplete.
In many... View Details
In many... View Details
Keywords: Antitrust; Antitrust Law; Antitrust Theory; Law And Economics; Collusion; Collaboration; Collaborative Industries; Regulation; ＂Repeated Games＂; IPOs; Initial Public Offerings; Underwriters; Real Estate; Real Estate Agents; Realtors; Syndicated Markets; Syndication; Brokers; Market Concentration; Competition; Law; Economics; Collaborative Innovation and Invention; Governing Rules, Regulations, and Reforms; Game Theory; Initial Public Offering
- February 2023 (Revised May 2023)
- Case
CalPERS Private Equity 2.0
By: Josh Lerner, John D. Dionne and Alys Ferragamo
Yup Kim, the Head of Investments, Private Equity at the California Public Employees’ Retirement System (CalPERS), reflected on the pension fund’s private equity strategy. In July of 2022, the fund was in the midst of a multi-year turnaround strategy with the goal to... View Details
- February 2023
- Article
A Different Framework to Achieve Universal Coverage in the U.S.
By: Katherine Baicker, Amitabh Chandra and Mark Shepard
This JAMA Forum discusses alternative ways to achieve universal coverage in the US such as administrative simplification in the Affordable Care Act plans to increase enrollment, having a basic policy that would be available to everyone, and options for supplemental... View Details
- 2023
- Working Paper
Crowding in Private Quality: The Equilibrium Effects of Public Spending in Education
By: Tahir Andrabi, Natalie Bau, Jishnu Das, Asim Ijaz Khwaja and Naureen Karachiwalla
We estimate the equilibrium effects of a public-school grant program administered through school councils in Pakistani villages with multiple public and private schools and clearly defined catchment boundaries. The program was randomized at the village-level, allowing... View Details
- February 2023
- Article
Increasing the Demand for Workers with a Criminal Record
By: Zoë Cullen, Will Dobbie and Mitchell Hoffman
State and local policies increasingly restrict employers’ access to criminal records, but without
addressing the underlying reasons that employers may conduct criminal background checks.
Employers may thus still want to ask about a job applicant’s criminal record... View Details
- 2023
- Working Paper
Life After Death: A Field Experiment with Small Businesses on Information Frictions, Stigma, and Bankruptcy
By: Shai Benjamin Bernstein, Emanuele Colonnelli, Mitchell Hoffman and Benjamin Iverson
In a randomized control trial (RCT) with U.S. small businesses, we document that a large share of firms are not well-informed about bankruptcy. Many assume that bankruptcy necessarily entails the death of a business and do not know about Chapter 11 bankruptcy, where... View Details